I just installed the Pro Comp JTB400 adjustable trac bar on my Jeep today. I have the RC 2.5" lift with the 3/4" spacer up front. I do not have any hitting issues and I flexed mine out as much as it could.

Paul

pics? please..

they actually don't hit while flexing, they hit under compression of both springs at the same time such as jumping or simply driving over a curb...

__________________I want your factory 07-up take-off/thrown out JK front/rear Lower Control Arms! Bent ones are perfect also as long as the bushings and cold cut rings are in good shape/useable

All this trackbar interference has me worried to buy anything....few questions I could not find addressed:

1 - If running a Dana 30, what would be the lowest profile aftermarket diff cover? (thinking of buying one, and want to make sure this does not contribute to the TB clearance issue)
2 - Is there an aftermarket diff cover that will increase the TB clearance?...even if just very slightly.
3 - Verdict?....what is the best Front Trackbar to buy for a 3-4" lift? Relocation/Heavy Duty Mount included or needed? Single or Double shear?

This seems like a tremendous issue to TJ's....somebody's gotta fix...right?..

Got some pics of where its hitting... do you think it will start messing up the diff? what is the best way to fix?
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it's more likely to cause the frame end joint/threads to fail than mess up the diff cover..

I'm assuming fro the looks of it, thats a rc track bar?

looking at the pic, you have planty of adjustment there, I'd pull the bar and put it in a press or tube bender and bend it slightly at the contact point and at the axle mount end, then re adjust it for center. be sure not to bend it very much, you'll run outta adjustment, bending it makes it shorter.

if that doesn't work, the NEW HD currie track bar seems to be the one that's definately not gonna hit anything...

__________________I want your factory 07-up take-off/thrown out JK front/rear Lower Control Arms! Bent ones are perfect also as long as the bushings and cold cut rings are in good shape/useable

All this trackbar interference has me worried to buy anything....few questions I could not find addressed:

1 - If running a Dana 30, what would be the lowest profile aftermarket diff cover? (thinking of buying one, and want to make sure this does not contribute to the TB clearance issue)
2 - Is there an aftermarket diff cover that will increase the TB clearance?...even if just very slightly.
3 - Verdict?....what is the best Front Trackbar to buy for a 3-4" lift? Relocation/Heavy Duty Mount included or needed? Single or Double shear?

This seems like a tremendous issue to TJ's....somebody's gotta fix...right?..

Thanks in advance!!!

it's an issue that's been ignored and misunderstood by some....

the clayton, teraflex, RE hd, FT, and nth degree track bars have relocation braketry and are double shear on both ends... th nth has a frame brace also.
they are all recomended for lifts over 3" and need to have at least 2" bumpstops. I'm running the nth on a highly modified 2.5" lift with 2" bumpstops with great success...
currie HD has a single shear JJ with a 5/8" bolt on the frame end. there's a pic above of the currie showing off the room it has, I do not know for certain yet that it'll bolt on without modification on a lift lower than 3.5"... that is worth a phone call, which I should make myself so I know what they say.

I'm not into heavy covers myself, I should be since my ring gear is rubbing my cover from a rather large dent... warn makes a good half skid that covers the lower part of the stock diff cover..

__________________I want your factory 07-up take-off/thrown out JK front/rear Lower Control Arms! Bent ones are perfect also as long as the bushings and cold cut rings are in good shape/useable

Simply not enought lift. Since there isnt enough spring there you need more bumpstop, JKS warns against not enough lift.

Sorry but JKS sells a trackbar for 0-3.5'' lifts and warns nobody about anything!!I repeat that i have a 2.5'' OME with 0.25'' spacers up front and a dana30 with factory diff cover and it hits.So in my book JKS is to blame and they should at least come forward and post an apologie in this GREAT thread .

God Guys if your going to let your front track bar hit the Diff let it Hit the Diff lol Just like this.

There was another thread that talked about trackbars breaking from repeatedly hitting the diff cover. When that happens you're s**ewed! So letting them rub the cover like shown in your pic is fine but when there is less clearance and they hit with force, repeatedly, is when its not OK...